Unlock instant, AI-driven research and patent intelligence for your innovation.

RS232 communication method, device and system

A communication system and communication method technology, applied in the field of devices and systems, and RS232 communication methods, can solve the problems of short communication distance and weak anti-interference ability, and achieve the effect of improving anti-interference ability and realizing long-distance transmission

Inactive Publication Date: 2012-05-30
ZTE CORP
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the problems of weak anti-interference ability and short communication distance in RS232 communication, provide an RS232 communication device, method and system, and effectively improve the distance and anti-interference ability of RS232 communication

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • RS232 communication method, device and system
  • RS232 communication method, device and system
  • RS232 communication method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily.

[0038] The present invention provides an RS232 communication device, comprising: an RS232 interface module, a pressure-flow conversion module and a flow-pressure conversion module, wherein:

[0039] The RS232 interface module is used to: output the RS232 voltage signal to the voltage-current conversion module; and receive the RS232 voltage signal output by the current-voltage conversion module;

[0040] The voltage-to-current conversion module is used to: convert the voltage signal output by the RS232 interface module into a current signal and transmit it to the opposite end through a transmission cable;

[0041] The current-voltage conversion module is used to: receive the current signal transmitted by...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an RS232 communication system, which comprises a transmitting end, wherein the transmitting end comprises a first RS232 interface module and a voltage and current conversion module; the first RS232 interface module is used for outputting an RS232 voltage signal to the voltage and current conversion module; the voltage and current conversion module is used for converting the RS232 voltage signal output by the first RS232 interface module into a current signal; and then, the current signal is output. The invention also provides an RS232 communication method and an RS232 communication device. The RS232 communication device comprises an RS232 interface module, a voltage and current conversion module and a current and voltage conversion module, wherein the current and voltage conversion module is used for receiving a current signal transmitted from an opposite end, converting the current signal into an RS232 voltage signal and transmitting the RS232 voltage signal to the RS232 interface module.

Description

technical field [0001] The present invention relates to the communication field, in particular, to an RS232 communication method, device and system. Background technique [0002] At present, RS232 is a communication method widely used in industrial control equipment. For simple RS232 communication, there are three main signals: sending signal (TXD), receiving signal (RXD) and reference ground signal, which can realize full-duplex communication. The transmission and reception of RS232 signals are all based on the reference ground signal, which is a common mode voltage signal transmission. Therefore, there are some defects in RS232 communication. First of all, the interface uses signal lines and reference ground wires to form a common-ground transmission form. This common-ground transmission is prone to common-mode interference, so the anti-noise interference is weak; secondly, the reliable transmission distance is short, and the maximum transmission distance standard value ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/02
Inventor 曹捷
Owner ZTE CORP